Wristwatch



FIG. 1 is a perspective view of the front and one side of a wristwatch showing my new design;

FIG. 2 is a front plan view thereof;

FIG. 3 is a rear plan view thereof;

FIG. 4 is an end elevational view of one end thereof;

FIG. 5 is an end elevational view of an opposite end thereof;

FIG. 6 is a side elevational view of said one side thereof; and,

FIG. 7 is a side elevational view of an opposite side thereof. 

The ornamental design for a wristwatch, as shown. 